As filed with the Securities and Exchange Commission on September 28, 2004
                                                     Registration No. 333-100662

  ===========================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                         POST-EFFECTIVE AMENDMENT NO. 1

                                   to Form S-8

                          REGISTRATION STATEMENT UNDER
                           THE SECURITIES ACT OF 1933

                       NATIONAL SEMICONDUCTOR CORPORATION
             (Exact name of registrant as specified in its charter)

         DELAWARE                                95-2095071
         --------                                ----------
(State or other jurisdiction of                 (I.R.S. Employer
incorporation or organization)                   Identification Number)

                            2900 Semiconductor Drive
                                 P.O. Box 58090
                       Santa Clara, California 95052-8090
                    (Address of principal executive offices)
        Registrant's telephone number including area code: (408) 721-5000
                 ----------------------------------------------

                             Stock Option Granted to
       Michael Fung, Anil Kunar, Paul Lessard, Duane Oto and Jackson Tung
         as partial consideration for the purchase of DigitalQuake, Inc.
                            (Full Title of the Plans)

                             JOHN M. CLARK III, Esq.
                     Senior Vice President, General Counsel
                                  and Secretary
                       NATIONAL SEMICONDUCTOR CORPORATION
                      2900 Semiconductor Drive, P.O. 58090
                           Santa Clara, CA 95052-8090
                                 (408) 721-5000

           (Name, address and telephone number, of agent for service)




                                     PART I
                                EXPLANATORY NOTE

DEREGISTRATION OF SHARES

     Pursuant to the  Registration  Statement on Form S-8, No.  333-100662  (the
"Registration  Statement"),   National  Semiconductor  Corporation,  a  Delaware
corporation  (the  "Company"),  registered  261,396* shares of its Common Stock,
$0.50 par value per share ("Common Stock"), issuable under the option granted to
Michael  Fung,  Anil  Kumar,  Paul  Lessard,  Duane  Oto and  Jackson  Tung ("DQ
Founders") as partial consideration for the purchase of DigitalQuake,  Inc. Upon
the Company's acquisition of DigitalQuake,  Inc., the Company granted the option
to the DQ  Founders  to  receive  their  second  and third  installments  of the
consideration due for their  DigitalQuake stock in Company stock. The option has
now expired and terminated.  The Company hereby removes from registration  under
the  Registration  Statement  158,128 shares of Common Stock remaining  unissued
under the Registration Statement.



*All share numbers  adjusted to reflect the two-for-one  stock split paid in the
form of a 100% stock dividend in May 2004.


                                     PART II




                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Company  certifies that it has  reasonable  grounds to believe that it meets all
the  requirements for filing this  Post-Effective  Amendment to the Registration
Statement on Form S-8  (Registration  No.  333-100662)  and has duly caused this
Post-Effective  Amendment  to the  Registration  Statement  to be  signed on its
behalf  by the  undersigned,  thereunto  duly  authorized,  in the City of Santa
Clara, State of California on September 27, 2004.

                                       NATIONAL SEMICONDUCTOR CORPORATION

                                       By    BRIAN L. HALLA*
                                       ---------------------
                                       Brian L. Halla
                                       Chairman of the Board, and
                                       Chief Executive Officer

     Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,
this Post-Effective Amendment to the Registration Statement on Form S-8 has been
signed below by the following  persons in the capacities  indicated on September
27, 2004.

  BRIAN L. HALLA*                           Chairman of the Board, President,
  (Brian L. Halla)                          Chief Executive Officer and Director
                                            (Principal Executive Officer)

  LEWIS CHEW*                               Senior Vice President, Finance and
    (Lewis Chew)                            Chief Financial Officer
                                            (Principal Financial Officer)

  ROBERT E. DeBARR*                         Controller
    (Robert E. DeBarr)                      (Principal Accounting Officer)

  STEVEN R. APPLETON*                       Director
    (Steven R. Appleton)
  GARY P. ARNOLD*                           Director
    (Gary P. Arnold)

  RICHARD J. DANZIG*                        Director
    (Richard J. Danzig)

  ROBERT J. FRANKENBERG*                    Director
    (Robert J. Frankenberg)

  E. FLOYD KVAMME*                          Director
    (E. Floyd Kvamme)

  MODESTO A. MAIDIQUE*                      Director
    (Modesto A. Maidique)

  EDWARD R. McCRACKEN*                      Director
    (Edward R. McCracken)

*By:  __//S// JOHN M. CLARK III____
         John M. Clark III, Attorney in Fact